Contact mounting



July 7, 1942.

H. L. VAN VALKENBURG CONTACT MOURTING Original Filed Sept. 22, 1937 v I INVENTQR Her/11017 l/IZI/if/Iill Patented July 1, 1942 2,289,086

UNITED STATES'PATENT OFFICE CONTACT MOUNTING Hermon L. Van Valkenburg, Wauwatosa, Wis., as-

signor to Square D Company, Detroit, Mich., a corporation of Michigan Original application September 22,1937, Serial No. 165,023. Divided and this application April 3, 1941, Serial No. 386,589

3 Claims.

This invention relates to mounting means for contact elements of electric switches, and has for its object the provision of an improved simple and economical contact mounting means.

lower wall 9.

To remove the .plate I, it is only necessary to move it toward the wall 8', compressing spring l6, then to rotate it to disengage the notches H from the sides I and II whereupon the contact plate may be moved longitudinally of the supporting enclosure. The mounting foot Ii is pro- This application is a division of my applica- 'vided with athreadedopening as at I! for the tion, Serial No.'165,023, filed September 22,1937 reception of a seeming stud such as shown at for Electric switch. it in Figure 1. v 7

Other objects and features of the invention will While certain preferred embodiments of the be readily apparent to those skilled in the art invention have been specifically disclosed, it is from the specification and appended drawing understood that the invention is not limit d illustrating certain preferred embodiments in thereto, as many variations will be readily al which: parent to those skilled in the art and the in- F gllre 1 is a sectional view of the contact vention is to begiven its broadest Possible mounting and its cooperation with stationary terpretation within the terms of the followin contacts. claims. I

Figure 2 is an enlarged sectional view of the What is claimed is: contact mounting. 1. Mounting means for an electric contact Figure 3 is a plan view of the contact mountcomprising a unitary support formed of a strip bent at one end to provide a right angle sup- Figure 4 is a plan view of the movable contact orting and attaching flange and having its 0D- elementposite end return bent to form substantially a The Switching Parts wn in Figure 1 include rectangle, a contact element mounted within said an insulating base i having a pair of spaced starectangle and interlocked with the side walls i n ry contacts 2 and 3 mounted up n ledges thereof, and spring means disposed in said recthereof, and having cooperating therewith the t ngle between one end wall and said contact. movable contact plate 4 resiliently mounted 2, Mounting means for an electric contact within the contact mounting indicated, generally comprising a unitary support formed of a strip at 5 which is-s pp rt d up n a v le actuatbent at one end to provide a right angle supmg element porting and attaching flange and having its 0D- The contact mounting shown more in detail in posite end return bent to form substantially a res 3 a d 4 c mprises a sing e piece rectangle, acontact element mounted within said strip metal formed to provide a mounting foot tangl and interlocked with the side walls 6. spac e a d a co t car y part thereof, spring means disposed in said rectangle formed by the d 1' the 8 7 being return bent between one end wall and said contact; and to f a rectangular ruc r having upper pressed out portions on the under surface of and lower walls 8 and 9; one side formed by the aid one end wall and on the upper surface of leg I, and the opposite side indicated at H. The said t t, said spring means having its oppoupper wall 8 is formed with a circular depression t d engaging aid pressed out portions so l2. Within the rectangle tormedlby the walls I l as to be rctainedinsaid rectangle. 8,-9, and 'II is mounted the movable bridging 40 3, Mounting means for an electric contact contact plate 4 having notches H in its opposite comprising a unitary support formed of a strip sides which embrace the sides I and II of the t 1 bent at one end to form a righ an e supp rectangle to limit normal movement oi-the plate mg and attacmng flange the opposite end f 4 to a substantially straight line movement in said strip being return bent to form substantial a plane parallel to the leg I. The contact plate ly a rectangle, a movable contact element in l is provided with a projection l5 and a con- 1 sertable in said rectangle from an open side tact pressure spring I8 is disposed withinlthe rectangle and maintained in place by engagethere"! and having its side edges moved to meat of its opposite ends with the projections l2 termck with the side V n 01 the rectangle when and it, this spring biasing the contact 4 toward rotated into its operating position. n spring means within said rectangle biasing said contact to one extreme P sition.

HERMON L. VAN VAIKENBURG. 

